Terracotta mould of a man on horseback

Terracotta moulds were mass produced in southern Mesopotamia.
They may have been intended for private worship or simply home
decoration and show various scenes of religious or secular
life.

Horses, introduced from Iran became increasingly common in
Mesopotamia from the early second millennium BC onwards. Eventually
they were used for pulling light chariots. The technology of
chariots developed, and changed the face of warfare in the Middle
East from Egypt to the Indus valley and beyond.

Although this mould shows a rider, it does not show a
cavalryman. All image of riders of this period ride bareback,
without stirrups, and straddle the horse towards its rump, not a
position from which one can control the animal easily. It was only
in the ninth century BC that cavalry horses were introduced, ridden
by Assyrians from the forward seat. Thus a new form of warfare, the
cavalry charge, was introduced. It is possible that selective
breeding played a part in these developments.

P.R.S. Moorey, 'Pictorial evidence for the history of horse-riding in Iraq before the Kassite Period', Iraq-15, 32 (1970), pp. 36-50

J. Keegan, A history of warfare (London, Hutchinson, 1993)

British Museum, A guide to the Babylonian and, 3rd ed. (London, British Museum, 1922)